Rust-resisting alloy of iron



UNITED STATES GEORGE E. GHABLB, OF CANTON, OHIO.

BUST-BEBIBTING ALLOY 0] IRON.

No Drawing.

To all whom it may concern:

Be it known that I, Gnonon H. CHARLS, a citizen of the United States, and a resident of Canton, Stark county, State of Ohio, have invented an Improvement in Rust-Resisting Alloy of Iron, of which. the followin is a specification.

his invention relates to alloys of iron adapted to resist tendencies to rust and corrosion. ()ne of the objects thereof is to provide a practical alloy of the above type which will possess rust-resisting properties to a marked degree. Another object is to provide an alloy of the above type which can be simply and inexpensively made. Other objects will be in part obvious and in part pointed out hereinafter.

The invention accordingly consists in certain features of the alloy herein illustratively described, and the scope of the a plication of which will be indicated in t e following claims.

In my alloy, I use as a chief constituent, iron; and it may be noted that the term iron is used in a broad sense to comprehend the inclusion of a carbon, thus makin what mi ht more s ifically be terme steel. ncorporated with the iron, aside from the elements usually associated therewith in commercial practice, I include small quantities of both copper and molybdenum.

The carbon is preferably kept low, and b low carbon, I mean that the content shal be not over 20%. The cop er in the resultant alloy is to be prefer-a ly kept under 20% and lower. The molybdenum in this alloy produces beneficial results even when a considerable fraction of a per cent. is used; but I referably confine it to' a small amount. In act, better results are obtained with less molybdenum and I have secured excellent results with this element present in the proportion of about .10%;

The co per and molybdenum may be added to t e molten iron or steel preferably in liquid form and in such manner that they Specification of Letters Patent.

prefer to keep it somewhat.

. amount but less to an efiective amount but less than .10%.

Patented Dec. 28, 1920.

Application tiled June 80, 1920. Serial No. 892,012.

will be uniformly distributed throughout the metal.

An alloy of the above nature has been found not only to possess the properties which are the dominant aim of this invention but to be readily workable and to be especially adapted for manufacture into sheets.

As variations might be made in the alloy herein set forth without departing from the scope of this invention, it is to be understood that it is herein described as illustrative rather than in a limiting sense.

I claim as my invention:

1. A rust-resisting alloy comprising iron, and small but effective amounts of copper and molybdenum.

2. rust-resisting alloy comprising iron free from more than 20% of carbon, an effective amount of copper less than 20%,

and a'small but effective amount of molybdenum.

3. A rust-resisting alloy comprisin iron, carbonless than 20%, copper in an e ective amount but less than 20%, and molybdenum in an effective amount but ess than 20%.

4. A rust-resisting alloy comprising iron free from more than 20% of carbon and having copper of an efiective amount but less than 20% and molybdenum of an amount less than .15%.

5. A rust-resisting alloy comprising iron free from more than 20% of carbon and havin copper of an eflective amount but less t n 15% and molybdenum of an amount less than 15%. 3

6. A rust-resisting alloy comprising lI'OIl free from carbon in an 'amount greater than 10% and havi copper to an eflective than 20% and mol'ydenum edmy In testimony whereof I have si day of name to this specification this 22n June, 1920.

GEORGE CHABLS. 

